Deerling and Sawsbuck showcase Black and White's new seasonal changes %26ndash; they both have four different forms that change based on the season. That's not the only thing they have going for them though, as their Normal/Grass typing is unique to their family. Sawsbuck also has an excellent signature move, Horn Leech, which functions like a physical attack version of Giga Drain, and only Sawsbuck can learn it.